12 90 Engine Control Module (M4 2021-2023)
WARNING: This page is about a different car, the 2025 BMW M4, 2024 BMW M4, 2023 BMW M4, 2022 BMW M4, and 2021 BMW M4. However, it is still accessible from the selected car via links, so may be relevant.
12 90 TIGHTENING TORQUE OVERVIEW
| Control unit bracket at the shock tower |
| Hexagon screw |
Tightening torque |
8 Nm |
| High-voltage connection to housing |
| M5 |
Tightening torque |
5 Nm |
| Tension relief to highly integrated electrified drive topology |
| Tightening torque |
19 Nm |